child seat

Abstract

To provide a child car seat that can suppress the increase in size while suppressing a decrease in strength. [Solution] A child seat installed in a vehicle, comprising a seat portion for a person to sit on and a reinforcing portion, wherein the seat portion comprises a seat portion on which the person sits and a rising portion that rises from around the seat portion, the seat portion comprises a backrest portion facing the back of the person sitting and a seat portion facing the buttocks of the person sitting, the rising portion has an edge portion extending along the tip of the rise, the rising portion has a belt insertion hole that extends from the edge portion toward the base end of the rise, penetrates in a direction perpendicular to the rising direction and the extension direction of the edge portion, through which the seat belt of the vehicle is inserted, or a bent portion that is positioned in the middle of the edge portion and bends so that the portion of the rising portion on the backrest side rises relative to the portion on the seat side, and the reinforcing portion is positioned around the belt insertion hole or the bent portion.

Description

Technical Field

[0001] The present invention relates to a child seat.

Background Art

[0002] Conventionally, a child seat described in Patent Document 1 is known. The child seat includes a base connected to a vehicle seat and a seat attached to the base. The seat includes a seat portion that supports a child's buttocks and a backrest portion that extends upward from the seat portion and supports the child's back, and the edges of the seat portion and the backrest portion are configured to extend continuously in a circular shape. Further, in the middle portion of the edges of the seat portion and the backrest portion, a belt insertion hole is provided that extends in a direction intersecting the extending direction of the edges and through which a vehicle seat belt can be inserted. (See FIG. 31 of Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a child seat as described in Patent Document 1, since a belt insertion hole with a slit formed in the middle of the annular edge is provided, the strength of the portion of the edge where the belt insertion hole is provided is weaker than other portions, and as a result, the strength of the entire child seat may decrease. In such a case, it is necessary to reinforce the entire child seat in order to obtain sufficient strength for the entire child seat, and the reinforcement has been a cause of the enlargement of the child seat.

[0005] Further, the decrease in the above strength is not limited to the case where a belt insertion hole for inserting a seat belt is provided in the edge, and the same problem occurs when a bent portion that is bent in the middle of the edge is formed.

[0006] Therefore, the present invention aims to provide a child car seat that can suppress a decrease in strength while suppressing an increase in the size of the child car seat. [Means for solving the problem]

[0007] The child seat of the present invention is a child seat installed in a vehicle, comprising a seat portion for a person to sit on and a reinforcing portion, the seat portion comprising a seat portion on which the person sits and a rising portion rising from around the seat portion, the seat portion comprising a backrest portion facing the back of the person sitting and a seat portion facing the buttocks of the person sitting, the rising portion having an edge portion extending along the tip of the rise, the rising portion having a belt insertion hole extending from the edge portion toward the base end of the rise, penetrating in a direction perpendicular to the rising direction and the extension direction of the edge portion, through which the seat belt of the vehicle is inserted, or a bent portion positioned in the middle of the edge portion, which bends so that the portion of the rising portion on the backrest side rises relative to the portion on the seat portion side, and the reinforcing portion is positioned around the belt insertion hole or the bent portion.

[0008] With this configuration, reinforcing parts are placed around the belt insertion holes or bends, so that the reduction in the strength of the child seat caused by the formation of the belt insertion holes or bends can be suppressed by local reinforcement. Specifically, when a force is applied to compress or tensile the edge of the child seat, the belt insertion holes or bends are prone to deformation such as crushing or opening, which may lead to a reduction in the overall strength of the child seat. However, since the area around the part that is prone to deformation is locally reinforced with reinforcing parts, the reduction in the strength of the child seat caused by the ease with which the belt insertion holes or bends can be deformed can be suppressed without having to reinforce the entire child seat by making the components thicker.

[0009] Furthermore, the reinforcing portion may also be configured to include a first extension portion that extends continuously from one side to the other in the direction of extension of the edge portion, either from the belt insertion hole or the bent portion.

[0010] With this configuration, the first extension portion extends continuously from one side of the belt insertion hole or the bent portion to the other side, so that it can withstand the force that crushes or opens the belt insertion hole or the bent portion. Therefore, it is possible to suppress the reduction in the strength of the child seat caused by the ease with which the belt insertion hole or the bent portion can deform.

[0011] Furthermore, the first extension portion may be positioned on the opposite side of the edge portion in the rising direction relative to the belt insertion hole or the bending portion, and the reinforcing portion may be connected to the first extension portion and include a second extension portion that extends from the first extension portion in the rising direction toward the edge portion.

[0012] With this configuration, since it includes a second extension portion that extends in the direction toward the edge from the first extension portion, it is possible to suppress the belt insertion hole or the bent portion from being crushed or opened at the second extension portion.

[0013] Furthermore, the rising portion may be configured to include a belt insertion hole, the belt insertion hole including a first slit extending from the edge towards the base end in the rising direction, and a second slit extending from the base end of the first slit in the rising direction in a direction intersecting the first slit, and the reinforcing portion including a first extension portion located on the opposite side of the edge from the second slit, and a second extension portion connected to the first extension portion and located between the second slit and the edge.

[0014] With this configuration, since the second extension, which is connected to the first extension, is located between the second slit and the edge, deformation such as the second slit opening or collapsing can be suppressed.

[0015] Furthermore, the reinforcing portion can be separate from the sheet portion and can be configured to be built into the sheet portion.

[0016] According to such a configuration, since the reinforcing portion is built in the sheet portion, it is possible to suppress a decrease in the design property due to the exposure of the reinforcing portion.

Effect of the Invention

[0017] According to the present invention, it is possible to obtain a child seat that can suppress a decrease in strength while suppressing an increase in the size of the child seat.

Brief Description of the Drawings

[0018] [Figure 1] It is a perspective view showing an outline of a child seat according to an embodiment of the present invention. [Figure 2] It is a side view showing the child seat. [Figure 3] It is an enlarged view of a portion III shown in FIG. 2. [Figure 4] It is a partial cross-sectional view showing a reinforcing portion of the child seat.

Mode for Carrying Out the Invention

[0019] A child seat C according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. The vertical direction, the front-rear direction, and the left-right direction will be described based on the directions shown in FIG. 1.

[0020] First, the vehicle in which the child seat C is installed will be described. The vehicle is a moving body that can be boarded and alighted by a person and can carry the person who has boarded, and is, for example, an automobile. The vehicle includes a vehicle-side seat for a person to sit on and a vehicle-side seat belt (not shown) for fixing a person sitting on the vehicle-side seat to the vehicle-side seat. The vehicle-side seat includes a vehicle-side seat on which a driver driving the vehicle sits and a vehicle-side seat on which a person not driving the vehicle sits, and the child seat C is installed on the vehicle-side seat on which a person not driving the vehicle sits. The vehicle-side seat belt is, for example, a three-point seat belt including a waist belt and a shoulder belt.

[0021] As shown in FIGS. 1 and 2, the child seat C includes a seat portion 1 on which a child as a seated person sits, a base 2 for attaching the seat portion 1 to a vehicle, and a reinforcing portion 3. Further, the child seat C of the present embodiment includes a built-in belt 4 built in the child seat C, and the seated person is fixed to the child seat C by the built-in belt 4 or a vehicle-side seat belt according to the physique of the seated person.

[0022] The seat portion 1 includes a seating portion 11 on which a seated person sits, a headrest 12 provided on the seating portion 11, and a rising portion 5 that rises around the seating portion 11. The seat portion 1 has an opening on the front side and is recessed on the rear side, and a seating area 1a defined by the seating portion 11 and the rising portion 5 and capable of accommodating the seated person is formed in the seat portion 1. Further, the seat portion 1 includes a connecting portion 13 for connecting to the base 2. The connecting portion 13 of the present embodiment is a cylindrical body extending downward from the lower surface of the seat portion 15.

[0023] The seating portion 11 includes a backrest portion 14 facing the back of the seated person and a seat portion 15 facing the buttocks of the seated person.

[0024] The backrest portion 14 is a plate-like shape extending in the vertical direction, and in the present embodiment, it extends in the vertical direction while being inclined so that the upper side is located on the rear side. It includes a backrest base portion 16 extending in the vertical direction and a telescopic back portion 17 that can expand and contract in the vertical direction with respect to the backrest base portion 16. The backrest base portion 16 is a plate-like shape constituting the rear end portion of the backrest portion 14 and has a rigidity such that it does not deform even when the seated person sits. Further, the backrest base portion 16 is a plate-like body with a substantially uniform thickness.

[0025] The telescopic back portion 17 is located on the front side of the backrest base portion 16 and is a plate-like shape that can expand and contract in the vertical direction along the backrest base portion 16. Specifically, the telescopic back portion 17 extends along the backrest base portion 16 and includes two plate-like bodies arranged side by side in the front-rear direction, and the other plate-like body moves in the vertical direction along the backrest base portion 16 with respect to one plate-like body, so that the whole expands and contracts in the vertical direction.

[0026] The seat portion 15 is a plate-like body that extends forward from the lower end of the backrest portion 14. Specifically, the seat portion 15 is a plate-like body whose rear end is connected to the lower end of the backrest portion 14, and whose front end is located on the front and upper side. The seat portion 15 has sufficient rigidity to not deform even when a person sits on it. In addition, the seat portion 15 is a plate-like body with a substantially uniform thickness, and is approximately the same thickness as the backrest base portion 16.

[0027] The seat portion 15 and the backrest portion 14 are connected at the lower and rear end of the seat portion 11, and the overall structure is roughly L-shaped when viewed from the side. The seat portion 11 also extends continuously from the front end of the seat portion 15 to the upper end of the backrest base portion 16.

[0028] The rising sections 5 are plate-like bodies that rise upward from both the left and right ends of the seating section 11. A pair of rising sections 5 are provided, spaced apart in the left-right direction, and are located at one end and the other end of the seat section 1 in the left-right direction. The rising section 5 on one end and the rising section 5 on the other end have the same configuration except that they are symmetrical in the left-right direction. Furthermore, the rising sections 5 are plate-like bodies with a substantially uniform thickness, and are substantially the same thickness as the backrest base 16 and the seat section 15.

[0029] The rising portion 5 has its base end connected to the left-right ends of the backrest base 16 and the seat 15, and its tip extends forward and upward so as to separate from the backrest base 16 and the seat 15. The rising portion 5 is also located in the area of ​​the seat 11 that includes the connection between the backrest base 16 and the seat 15, and connects the left-right ends of the backrest 14 and the left-right ends of the seat 15. The rising portion 5 is positioned to extend continuously from the upper end of the backrest base 16 to the front end of the seat 15, with its tip extending continuously from the upper end of the backrest base 16 to the front end of the seat 15.

[0030] The upper end of the backrest portion 14, the tip of the upright portion 5, and the front end of the seat portion 15 form a continuous edge portion 6 that extends around the entire circumference. Except for the reinforced portion 52 described later, the edge portion 6 extends smoothly without any steps or bends.

[0031] The rising section 5 includes an operating section 51 for attaching and detaching the sheet section 1 to the base 2, and a reinforced section 52. The operating section 51 has a handle section 53 for gripping when attaching and detaching the sheet section 1 to the base 2, and an operating hole 51a is formed that penetrates in the thickness direction for gripping the handle section 53. The handle section 53 is located at the tip of the rising section 5, and the operating hole 51a is formed between the tip and base end of the rising section 5. The handle section 53 is configured to release the locking of the connecting section 13 to the base 2 when gripped.

[0032] The reinforced portion 52 is the portion of the rising portion 5 in which a bent portion or a belt insertion hole 5a is formed at the edge 6. In this embodiment, the reinforced portion 52 is the portion in which a belt insertion hole 5a is formed at the edge 6. The reinforced portion 52 also comprises a seat-side portion 52F which is on the seat 15 side (front side) relative to the belt insertion hole 5a, and a back-side portion 52R which is on the backrest 14 side (rear side) relative to the belt insertion hole 5a.

[0033] As shown in Figure 3, the belt insertion hole 5a is a hole that extends from the edge 6 toward the base end of the rising part 5 and penetrates the rising part 5 in the thickness direction. The belt insertion hole 5a is a hole for inserting the vehicle-side seat belt from the inner side to the outer side of the rising part 5 when securing the person seated in the child seat C with the vehicle-side seat belt. Specifically, the belt insertion hole 5a includes a first slit S1 that extends from the edge 6 toward the base end of the rising part 5, and a second slit S2 that extends toward the rear from the base end of the first slit S1. In this embodiment, the second slit S2 is formed to extend toward the rear from the first slit S1 at a position spaced apart from the edge 6 toward the base end.

[0034] The reinforced portion 52 is a portion whose edge 6 is more easily deformed in the direction that brings the backrest portion 14 and the seat portion 15 closer together or further apart when a force is applied in the direction that brings the backrest portion 14 and the seat portion 15 closer together or further apart, compared to other parts. In this embodiment, when a force is applied in the direction that brings the backrest portion 14 and the seat portion 15 closer together or further apart, the seat portion 52F and the back portion 52R are easily deformed to move closer together or further apart, causing the belt insertion hole 5a to open or close.

[0035] The headrest 12 is a plate-shaped body provided at the upper end of the backrest 14. The headrest 12 is located on the front side of the backrest 14 and is a plate-shaped body that is curved so as to be convex towards the rear, and the head of the seated person can be accommodated inside the curve. The headrest 12 is also provided so as to be movable in the vertical direction relative to the backrest 14.

[0036] As shown in Figures 1 and 2, the seat portion 1 is composed of an outer shell part P1, a base part P2 positioned in front of the outer shell part P1, side wall parts P3 provided on both the left and right sides of the outer shell part P1 and the base part P2, an operating part P4 fixed to the side wall part P3, and a headrest part P5 provided on the base part P2. The outer shell part P1 is a plate-like body that constitutes the rear end of the seat portion 1. The base part P2 is located in front of the outer shell part P1 and is a part that constitutes the seating portion 11. The base part P2 has notches formed at both the left and right ends for the operating part P4 to be fitted. The side wall part P3 is connected to the outside of the base part P2 in the left-right direction and is provided so as to rise from both the left and right ends of the outer shell part P1. The side wall part P3 also has notches formed therein for the operating part P4 to be fitted. The operating part P4 is a part on which the operating section 51 is provided, and it fits into the notches of the base part P2 and the side wall part P3.

[0037] The operating part P4 is positioned relative to the base part P2, with a gap between the lower end of the operating part P4 and the base part P2, which serves as a belt insertion hole 5a. In other words, the belt insertion hole 5a is the gap formed between the base part P2 and the operating part P4. Furthermore, excluding the belt insertion hole 5a, the outer shell part P1, base part P2, side wall part P3, and operating part P4 are connected so that they abut each other at the connecting parts, and no gaps are formed between the connecting parts of each part, so that each part is positioned continuously.

[0038] As described above, the seat portion 1 is composed of multiple parts, and each part is connected in contact with each other except for the reinforced portion 52. Therefore, when a force is applied to the seat portion 1 in a direction that brings the backrest portion 14 and the seat portion 15 closer together or further away from it, deformation of the area around the connecting portion due to movement in the direction that brings the backrest portion 14 and the seat portion 15 closer together or further away from it can be suppressed.

[0039] As shown in Figure 2, the base 2 comprises a seat mounting section 21 on which the seat section 1 is placed, a mounting fixture 22 for fixing the seat mounting section 21 to the vehicle, and a support leg 23 provided at the front end of the seat mounting section 21 and extending to the floor surface of the vehicle on which the vehicle-side seat is installed. The mounting fixture 22 is provided at the rear end of the seat mounting section 21 and can be fixed to an ISOFIX-compatible fastener (latch) provided on the vehicle. In this embodiment, the base 2 is attached to the vehicle by the support leg 23 and the mounting fixture 22, thereby being installed in a stable state on the vehicle. However, the configuration is not limited to this, and for example, a configuration in which the base 2 is fixed to the vehicle with another member such as a vehicle-side seat belt can also be adopted. In such a configuration, it is also possible to have a configuration without the support leg 23 or without the mounting fixture 22.

[0040] The seat support section 21 is the part on which the seat section 1 is placed and is capable of holding the seat section 1 once it is placed on it. Specifically, the seat support section 21 is configured to hold the seat section 1 when the connecting section 13 engages with the seat section 1 while the seat section 1 is placed on it. The seat support section 21 is configured such that when the connecting section 13 is engaged, the seat section 1 cannot be separated from the seat section 1, and when the connecting section 13 is disengaged, the seat section 1 can be separated from the seat section 1. Furthermore, the seat support section 21 is capable of holding the seat section 1 in both a first position (shown in Figure 2) where the backrest section 14 is located at the rear and the seat section 15 is located at the front, and a second position where the backrest section 14 is located at the front and the seat section 15 is located at the rear.

[0041] When the seat unit 1 is installed in the first position, the occupant is accommodated in the seating area 1a with their head facing forward. When the seat unit 1 is installed in the second position, the occupant is accommodated in the seating area 1a with their head facing forward and their back to the seat. In this way, the seat unit 1 of this embodiment can accommodate occupants in different positions by adopting two different positions. The case of accommodating an occupant in the second position with their back to the seat is, for example, when accommodating an occupant under one year old whose neck is not yet strong enough to support their head, while the case of accommodating an occupant in the first position with their neck is when accommodating an occupant whose neck is strong enough to support their head but who needs to use a child seat C, for example, an occupant between one and eleven years old. Furthermore, when accommodating an occupant in the first position with their back to the seat, the occupant is secured to the seat unit 1 with the built-in belt 4 or the vehicle's seat belt, depending on the occupant's physique.

[0042] When securing a occupant with a vehicle-side seat belt, the vehicle-side seat belt is introduced from one side in the left-right direction, passing across the front of the seating area 1a, and then passed through to the other side in the left-right direction. At this time, the vehicle-side seat belt is passed through the belt insertion hole 5a. Specifically, at least the lap belt of the vehicle-side seat belt is passed through the belt insertion hole 5a. When passing the vehicle-side seat belt through the belt insertion hole 5a, the vehicle-side seat belt is inserted into the belt insertion hole 5a from the first slit S1 extending to the edge 6, moved along the belt insertion hole 5a toward the base end, and then moved to the second slit S2.

[0043] As shown in Figures 3 and 4, the reinforcing portion 3 is a plate-like body positioned on the reinforced portion 52, and is located around the belt insertion hole 5a on the reinforced portion 52. Furthermore, the reinforcing portion 3 is separate from the sheet portion 1. Specifically, the reinforcing portion 3 comprises a first extension portion 31 extending in the front-rear direction and a second extension portion 32 extending in the direction rising from the first extension portion 31. In this embodiment, the reinforcing portion 3 is provided such that the second extension portion 32 rises from both ends of the first extension portion 31 in the front-rear direction. That is, the second extension portion 32 comprises a front extension portion 33 located on the front side and a rear extension portion 34 located on the rear side. The reinforcing portion 3 is a plate-like body made of resin, and the entire structure is formed as one piece. Furthermore, the thickness of the reinforcing portion 3 is thinner than the thickness of the rising portion 5.

[0044] The first extended portion 31 is a plate-like body that extends in the longitudinal direction in the front-rear direction and in the width direction in the vertical direction. In this embodiment, the first extended portion 31 has a substantially constant vertical length and extends linearly in the front-rear direction. Furthermore, the length of the first extended portion 31 in the front-rear direction is longer than the length of the second slit S2 in the front-rear direction, and the length in the vertical direction is shorter than the distance from the second slit S2 to the base end of the rising portion 5.

[0045] The front extension portion 33 is a plate-like body extending upward from the front end of the first extension portion 31. The front extension portion 33 is a plate-like body extending from the front end of the first extension portion 31 along the extension direction of the first slit S1, and in this embodiment, it extends forward and upward. Specifically, the front extension portion 33 is connected to the front end of the first extension portion 31 and includes a front reinforcing portion 331 that extends forward and upward. In this embodiment, the front extension portion 33 is formed in a plate shape that extends continuously in the same direction with the same width. Furthermore, the length of the front extension portion 33 in the longitudinal direction along the extension direction of the first slit S1 is shorter than twice the length in the width direction along the width direction of the first slit S1, and in this embodiment, it is 1.5 times or less. The length of the front extension portion 33 in the direction along the width direction of the first slit S1 is approximately equal to the vertical length of the first extension portion 31.

[0046] The rear extension portion 34 is a plate-like body extending upward from the rear end of the first extension portion 31. The rear extension portion 34 extends forward and upward from the rear end of the first extension portion 31. The rear extension portion 34 comprises a rear reinforcing portion 341 connected to the rear end of the first extension portion 31, and an intermediate reinforcing portion 342 that constitutes the tip of the rear extension portion 34 and extends forward and upward from the rear reinforcing portion 341. The rear extension portion 34 is formed such that the rear reinforcing portion 341 and the intermediate reinforcing portion 342 have the same width and extend in the same direction. Furthermore, the rear extension portion 34 is arranged so that its longitudinal direction extends forward and upward, and its longitudinal length is 2 times or less the widthwise length, and in this embodiment, it is 1.5 times or less. Furthermore, the rear extension portion 34 has a widthwise length that is longer than the widthwise lengths of the first extension portion 31 and the front extension portion 33, specifically at least 1.5 times longer.

[0047] The front extension 33 and the rear extension 34 are positioned at a distance equal to the length of the first extension 31 at the base end, and at the tip end, they are positioned at a distance closer than the distance between the base ends. In this embodiment, the front extension 33 and the rear extension 34 are configured to move closer to each other as they approach the tip.

[0048] As shown in Figure 3, the reinforcing portion 3 is positioned around the belt insertion hole 5a in the reinforced portion 52. Specifically, the reinforcing portion 3 has a first extension portion 31 located on the base side relative to the belt insertion hole 5a, a front extension portion 33 located on the front side relative to the belt insertion hole 5a, and a rear extension portion 34 located on the rear side relative to the belt insertion hole 5a. Specifically, the first extension portion is located adjacent to the base side of the second slit S2, the front extension portion 33 is positioned on the seat side portion 52F adjacent to the front side of the first slit S1, and the rear extension portion 34 is positioned on the back side portion 52R adjacent to the rear side of the second slit S2. The tips of the front extension portion 33 and the rear extension portion 34 extend to the edge portion 6. In this way, the reinforcing portion 3 is positioned adjacent to the belt insertion hole 5a, surrounding the belt insertion hole 5a from the front, rear, and base sides.

[0049] The first extension portion 31 is positioned to extend continuously in the front-rear direction from one end to the other of the belt insertion hole 5a. Therefore, when a force in the front-rear direction is applied to the seat-side portion 52F of the reinforced portion 52, the first extension portion 31 receives the force and suppresses the movement of the seat-side portion 52F in the front-rear direction.

[0050] The front reinforcing portion 331 is located in front of the belt insertion hole 5a and, when a force in the front-rear direction is applied to the seat-side portion 52F of the reinforced portion 52, it receives the force and suppresses the movement of the seat-side portion 52F in the front-rear direction. Specifically, the front reinforcing portion 331 is located in front of the first slit S1 and, when it receives a force in the front-rear direction, the seat-side portion 52F, which is attempting to move in the front-rear direction, comes into contact with the front reinforcing portion 331, thereby receiving a force in the front-rear direction and suppressing the movement of the seat-side portion 52F in the front-rear direction.

[0051] The rear reinforcing portion 341 is located behind the belt insertion hole 5a and, when a force in the front-rear direction is applied to the seat-side portion 52F of the reinforced portion 52, it receives the force and suppresses the movement of the seat-side portion 52F in the front-rear direction. Specifically, the rear reinforcing portion 341 is located behind the rear end of the second slit S2 and, when the seat-side portion 52F, which is receiving a force in the front-rear direction and attempting to move in the front-rear direction, comes into contact with the rear reinforcing portion 341, it receives the force in the front-rear direction and suppresses the movement of the seat-side portion 52F in the front-rear direction.

[0052] Furthermore, since the rear extension portion 34 extends forward and upward from the rear end portion of the second slit S2, the intervening reinforcing portion 342 that constitutes the tip of the rear extension portion 34 is located between the edge portion 6 and the second slit S2. Therefore, when the second slit S2 attempts to deform in a way that causes it to open or close, the rear portion 52R comes into contact with the intervening reinforcing portion 342, thereby suppressing the deformation that causes the second slit S2 to open or close.

[0053] Furthermore, the reinforcing portion 3 is built into the seat portion 1 so as to span across multiple parts that make up the seat portion 1. Specifically, the reinforcing portion 3 is built into the rising portion 5. In this embodiment, the reinforcing portion 3 is arranged to span across the base part P2 and the operating part P4, specifically, the front extension portion 33 abuts against the base part P2 and the rear extension portion 34 abuts against the operating part P4. Therefore, the reinforcing portion 3 can prevent the parts from separating from each other. In particular, although a gap as a belt insertion hole 5a is formed between the parts, the reinforcing portion 3 is arranged to surround the gap, so that the parts can prevent them from separating from each other.

[0054] As described above, with the child seat C of this embodiment, since the reinforcing portion 3 is arranged around the reinforced portion 52, the reduction in strength of the child seat C due to the formation of the belt insertion hole 5a or the bent portion can be suppressed by local reinforcement. Specifically, when a force is applied to the edge portion 6 of the child seat C that compresses or tensiles it, the belt insertion hole 5a or the bent portion is prone to deformation such as being crushed or opened, which may lead to a reduction in the overall strength of the child seat C. However, since the area around the part that is prone to deformation is locally reinforced with the reinforcing portion 3, the reduction in strength of the child seat C caused by the ease with which the belt insertion hole 5a or the bent portion can be deformed can be suppressed without having to reinforce the entire structure of the child seat C by making the components thicker.

[0055] Although embodiments of the present invention have been described above with reference to one example, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0056] For example, child seat C was described using a configuration that includes a built-in belt 4 and can secure the occupant with both the built-in belt 4 and the vehicle's seat belt, but the configuration is not limited to this. For example, it is also possible to have a configuration that does not include a built-in belt 4 and can secure the occupant with only the vehicle's seat belt.

[0057] Furthermore, while we have described a case where child seat C can be installed in a vehicle in both the first and second positions, the configuration is not limited to this, and for example, it can also be configured to be installed in a vehicle only in the first position.

[0058] Furthermore, although the example described uses the case where a belt insertion hole 5a is formed in the rising portion 5, the configuration is not limited to this, and a configuration in which a bent portion is formed in the rising portion 5 and a reinforcing portion 3 is arranged around the bent portion. The bent portion is located in the middle of the edge portion 6 and is the part of the rising portion 5 that bends so that the back portion 52R rises up relative to the seat portion 52F. Even with such a configuration, when force is applied in the front-to-back direction, the reinforcing portion 3 can suppress deformation in which the bent portion bends or opens, and the back portion 52R moves closer to or further away from the seat portion 52F. In addition, in such a configuration, the seated person can be secured only by the built-in belt 4.

[0059] Furthermore, although the reinforcement part 3 was described as a plate-like body made of resin as an example, it is not limited to this configuration and can be made of materials other than resin, or can be made into other shapes such as blocks.

[0060] Furthermore, although the configuration in which the belt insertion hole 5a is formed has been described in which the second slit S2 extends to the rear from the first slit S1, the configuration is not limited to this, and the second slit S2 can also extend to the front from the first slit S1. In such a configuration, the front extension portion 33 and the rear extension portion 34 can be arranged in reverse order.

[0061] Furthermore, although the case where the reinforcing part 3 is separate from the seat part 1 has been described, the configuration is not limited to this, and it can also be configured as an integral part with the seat part 1. For example, a configuration in which the parts constituting the seat part 1 and the reinforcing part 3 are integrally molded can be adopted. [Explanation of Symbols]

[0062] 1...Seat section, 1a...Seating area, 11...Seating section, 12...Headrest, 13...Connecting section, 14...Backrest section, 15...Seat section, 16...Base section, 17...Extendable back section, 2...Base, 21...Seat mounting section, 22...Mounting bracket, 23...Support leg, 3...Reinforcement section, 31...First extension section, 32...Second extension section, 33...Front extension section, 331...Front reinforcement section, 34...Rear extension section, 341...Rear reinforcement section, 342 ...intermediate reinforcement section, 4...built-in belt, 5...riser section, 5a...belt insertion hole, 51...operating section, 51a...operating hole, 52...reinforced section, 52F...seat side section, 52R...back side section, 53...handle section, 6...edge section, C...child seat, P1...outer shell part, P2...base part, P3...side wall part, P4...operating part, P5...headrest part, S1...first slit, S2...second slit

Claims

1. A child car seat installed in a vehicle, It comprises a seat section for the person to sit on and a reinforcing section, The seat portion comprises a seating portion on which the occupant sits, and a rising portion that extends from around the seating portion. The seating portion comprises a backrest portion facing the back of the sitter and a seat portion facing the buttocks of the sitter. The aforementioned rising portion has an edge that extends along the tip of the rising portion, The aforementioned rising portion is formed with a belt insertion hole extending from the edge towards the base end of the rise, penetrating in a direction perpendicular to the rising direction and the extending direction of the edge, through which a vehicle seat belt is inserted, or a bent portion positioned in the middle of the edge, which bends so that the portion of the rising portion on the backrest side rises relative to the portion on the seat side. The reinforcing portion is positioned around the belt insertion hole or the bending portion of the child seat.

2. The child seat according to claim 1, wherein the reinforcing portion comprises a first extending portion that extends continuously from one side to the other side of the belt insertion hole or the bent portion in the extending direction of the edge portion.

3. The first extension portion is positioned on the opposite side of the edge portion in the rising direction relative to the belt insertion hole or the bending portion, The child seat according to claim 2, wherein the reinforcing portion is connected to the first extending portion and includes a second extending portion that extends from the first extending portion in a direction toward the edge in the rising direction.

4. The aforementioned rising portion has the belt insertion hole formed therein. The belt insertion hole includes a first slit extending from the edge towards the base end in the rising direction, and a second slit extending from the base end of the first slit in the rising direction in a direction intersecting the first slit. The child seat according to claim 1, wherein the reinforcing portion comprises a first extension portion located on the opposite side of the edge portion with respect to the second slit, and a second extension portion connected to the first extension portion and located between the second slit and the edge portion.

5. The reinforcing portion is separate from the seat portion and is built into the seat portion, as described in any one of claims 1 to 4.

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